Maximilian wappich



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T0 ALL WHOM IT MAY CONCERN: n

Be it known that I, MAxrMrLLiN Werrrcu, oi Sacramento, in the county ofSacramento, and State of California, have invented certain new anduseful Improvements in Metallic Barrels, Torpedoes, and other Vessels,for insuring great strength, durability, und impcrviousness; und I dohereby declare the following to be a. clear and exact description of thesame, reference being had to the accompanying drawings, forming part ofthis specification, in which like letters indicate the same purts,\andin which drawingsl Figure 1 represents a side view of my improved bnrrelwith the rolling bolt around it.

Figure 2, an end view'oi' the same.

Figure 3, o longitudinal section of the improved barrel.

Figure 4, a cross-section of the same. Y

Figure 5 represents a corrugated barrel with my improved joint.

Figure 6 represents in sections various modifications of my improvedplan 'of formingjoints of metallic barrels, &c. Y

The object of my invention is to obtain a metallic barrel orotberivessel which will possess great strength, though made oi'comparatively thin metal, and at the sa'me time be proof againstyleakage or wastuge. My invention eonsists'in making the joints, whichare to be secured by means of rivets or bolts, and soldered or brazedtogether, proof against the passage-of moisture or even of gaseousiuidsf For this purpose I provide one or more grooves or recesses solocated as not to be in line with the rivets. These recesses are to heofterwards filled with metal or alloy, which must he softer than themetal of which the barrel is formed. i It thus forms packing rings orpacking pieces in grooves in which they are secured either by beingsoldered or by upsetting or by doubling the edge of tho sheet metal soas to confine the packing, or by some other equivalent method. Ifnecessary the soft metallic packing may he driven into the groo'vcs themore completely and perfcctlylto tighten the joint und render itimpervious. I

'1 0 enable others skilled in the art to make and use my improvement, Iwill now proceed'todescribe it in detail.-l

i Ir. the'drawing, U, fig. 1, regresents the metallic barrel, the convexshell of which is made of sheet iron, which can he formed from astraight sheet by passing it through a. set of properly formed rollers.The curved sheet is then passed through a set of rollers arranged insuch a manner as tobend the sheet iinto a circular barrel, which canbest be done while th'e metal is in a warm state. It maybe formedcylindrical or witha bilge and either plain or corrugated. The `sheetiron may be rolled thicker at its outeredges for the chine, or thickerin the middle for the bilge, or in any other form that may be desired.When the barrel is thus rolled ont its edges are trued" up andthe-recess groove is made by stumps, diem-rollers, or otherwise, not forfrom the rivet holes, as shown at e in the drawings. The barrel-heads Care hanged, and on the flange e the recess groove is made for'thereception of the packing 7' of the joint z. Thehead is fitted in thechine and the hoop' dis properly punched and fixed upon the chine, andthe parts are duly riveted together. Thus a very strong joint is made. Ahead cross-piece, g, may he fitted in the flange c to the outside of thehead G. It will serve to give stability to the head, and protect thechine and joints ol' the barrel ehdwise. The ends of this crosspiece gmuy be bent, as shown in fig, 3, so ns to form a strong seat or hold forthe hoisting hooks.' The rivet joint x and the recess groove e arerendered impervious by lling up the recess e with a soft metalcomposition or alloy, forming thus a substantial packing for the jointz. The recess groove e may be filled by ponrig the molten metal, byputting the metal on with a soldering-iron or by heating the joint undthen dipping it in the molten metal. 'In iig. (i some of the differentshapes and modifications of the recess groove e are shown. All

the joints are riveted or bolted securely together, and thc recessgroove made so as not to be in line with the rivets, arid these jointsare riveted before the recesses are filled withthe soft metal packings,which are secured therein by soldering o'r hy the form of the grooves.In each of these cases itwill be seen that the rivets pass through allthe iron parts forming the joint and hold them all firmly together. Therecess grooves are formed on one side or on hoth'sides oi the rivets, sothat the soft metal may be inserted after the parts are iirmlyrivetedtogether. 'lhe bung-block u is riveted to the inside of the barrel, andis made impervious in the same manner as the other joints. It may beprovided with a screw-thread -to receive the tight-itting 5crewbung w.Thev faucet-blockfis made impervious hy having also u-reccss groovejoint similarly arranged, and provided as that o`i` the bung-block n.The hung and faucet-blocks may be secured at any desired place in thebarrel. According to the size and strength required of the vessel'orvbarrel, the j oints are secured by single or double rows of rivets,andare provided With recess grooves e, or with a series of recessgrooves so located as not to bc in line with the rivets, and arerendered impervious by corresponding soft metal packing pieces or ringsr in the recess grooves e, as hereinbefore described. Instead of rivets,screw-bolts may be used for fastening the head C to they chine of thebarrel, so as to enable the head to be removed with little difficultyfor the convenience of loading return'freights or for other purposes.When replaced they may be rendered impervious by a few blows applied todriving the soft metal packing more firmly into the grooves whichcontain it. Any accidental leak that may be caused by any othercircumstance mayjn the same manner be remedied.v The .barrels'maydlemade of any desired sheet metal, but it is most economical to make themof sheet iron, which muy be galvanized or otherwise coated wholly orpartially with any metal, alloy, or composition that may seem bestadapted to that purpose.` This can be best done after putting ono headinto the barrel, and before inserting the other. This other head maythen be coated and then bolted or riveted in the chine of the barrel.

I am aware thatjoints have been made by inserting a packing of softmetal, leather, or India rubber, or of other material between the twosheets ot' metal that are to be riveted together. I am also aware thatWater pipcs of cast iron or other'material have been'connccted togetherby making one end of the pipes it into an enlarged end of the next one,and then filling the space withfmolten lead or other equivalentmaterial. But it is clear that this last-named process would not beapplicable to the manufacturing of barrels, tanks, or other similar*.vessels. t istalso evident that the insertion of a packing of softmetal, or of leather, India rubber, or other equivalent substance intothe joint and under the rivet, is substantially diierent from my methodof first riveting the parts firmly together, and theninserting thepacking by means of a provision made for that purpose. What therefore Iclaim as new, and desire to secure by Letters Patent, i s l 'My improvedmode of rendering impervious the joints made in`barrels, tanks, or othervessels which are constructed of sheet or plate metal, by the insertiono f a packing of soft inetal or alloy in grooves provided for thatpurpose, which are not in line with the rivets or bolts, and are soconstructed and arranged that such packing may be inserted after theriveting has been completed, substantially as and for the purposedescribed.

' MAXIMILIAN WAPPICH.

Witnesses:

W. THOMPSON, F. BRANDNER.

